Public Member Functions |
Public Attributes |
Protected Member Functions |
Protected Attributes |
List of all members
gem5::X86ISA::GpuTLB::MemSidePort Class Reference
MemSidePort is the TLB Port closer to the memory side If this is a last level TLB then this port will not be connected. More...
#include <tlb.hh>
Inheritance diagram for gem5::X86ISA::GpuTLB::MemSidePort:
Public Member Functions | |
| MemSidePort (const std::string &_name, GpuTLB *gpu_TLB, PortID _index) | |
 Public Member Functions inherited from gem5::RequestPort | |
| RequestPort (const std::string &name, SimObject *_owner, PortID id=InvalidPortID) | |
| Request port. | |
| RequestPort (const std::string &name, PortID id=InvalidPortID) | |
| virtual | ~RequestPort () |
| void | bind (Port &peer) override |
| Bind this request port to a response port. | |
| void | unbind () override |
| Unbind this request port and the associated response port. | |
| virtual bool | isSnooping () const |
| Determine if this request port is snooping or not. | |
| AddrRangeList | getAddrRanges () const |
| Get the address ranges of the connected responder port. | |
| void | printAddr (Addr a) |
| Inject a PrintReq for the given address to print the state of that address throughout the memory system. | |
| Tick | sendAtomic (PacketPtr pkt) |
| Send an atomic request packet, where the data is moved and the state is updated in zero time, without interleaving with other memory accesses. | |
| Tick | sendAtomicBackdoor (PacketPtr pkt, MemBackdoorPtr &backdoor) |
| Send an atomic request packet like above, but also request a backdoor to the data being accessed. | |
| void | sendFunctional (PacketPtr pkt) const |
| Send a functional request packet, where the data is instantly updated everywhere in the memory system, without affecting the current state of any block or moving the block. | |
| void | sendMemBackdoorReq (const MemBackdoorReq &req, MemBackdoorPtr &backdoor) |
| Send a request for a back door to a range of memory. | |
| bool | sendTimingReq (PacketPtr pkt) |
| Attempt to send a timing request to the responder port by calling its corresponding receive function. | |
| bool | tryTiming (PacketPtr pkt) const |
| Check if the responder can handle a timing request. | |
| bool | sendTimingSnoopResp (PacketPtr pkt) |
| Attempt to send a timing snoop response packet to the response port by calling its corresponding receive function. | |
| virtual void | sendRetryResp () |
| Send a retry to the response port that previously attempted a sendTimingResp to this request port and failed. | |
| Public Member Functions inherited from gem5::Port | |
| virtual | ~Port () |
| Virtual destructor due to inheritance. | |
| Port & | getPeer () |
| Return a reference to this port's peer. | |
| const std::string | name () const |
| Return port name (for DPRINTF). | |
| PortID | getId () const |
| Get the port id. | |
| bool | isConnected () const |
| Is this port currently connected to a peer? | |
| void | takeOverFrom (Port *old) |
| A utility function to make it easier to swap out ports. | |
Public Attributes | |
| std::deque< PacketPtr > | retries |
Protected Member Functions | |
| virtual bool | recvTimingResp (PacketPtr pkt) |
| MemSidePort receives the packet back. | |
| virtual Tick | recvAtomic (PacketPtr pkt) |
| virtual void | recvFunctional (PacketPtr pkt) |
| virtual void | recvRangeChange () |
| Called to receive an address range change from the peer response port. | |
| virtual void | recvReqRetry () |
| Called by the peer if sendTimingReq was called on this peer (causing recvTimingReq to be called on the peer) and was unsuccessful. | |
| Protected Member Functions inherited from gem5::RequestPort | |
| Tick | recvAtomicSnoop (PacketPtr pkt) override |
| Default implementations. | |
| void | recvFunctionalSnoop (PacketPtr pkt) override |
| Receive a functional snoop request packet from the peer. | |
| void | recvTimingSnoopReq (PacketPtr pkt) override |
| Receive a timing snoop request from the peer. | |
| void | recvRetrySnoopResp () override |
| Called by the peer if sendTimingSnoopResp was called on this protocol (causing recvTimingSnoopResp to be called on the peer) and was unsuccessful. | |
| Protected Member Functions inherited from gem5::Port | |
| void | reportUnbound () const |
| Port (const std::string &_name, PortID _id) | |
| Abstract base class for ports. | |
| Protected Member Functions inherited from gem5::AtomicRequestProtocol | |
| Tick | send (AtomicResponseProtocol *peer, PacketPtr pkt) |
| Send an atomic request packet, where the data is moved and the state is updated in zero time, without interleaving with other memory accesses. | |
| Tick | sendBackdoor (AtomicResponseProtocol *peer, PacketPtr pkt, MemBackdoorPtr &backdoor) |
| Send an atomic request packet like above, but also request a backdoor to the data being accessed. | |
| Protected Member Functions inherited from gem5::TimingRequestProtocol | |
| bool | sendReq (TimingResponseProtocol *peer, PacketPtr pkt) |
| Attempt to send a timing request to the peer by calling its corresponding receive function. | |
| bool | trySend (TimingResponseProtocol *peer, PacketPtr pkt) const |
| Check if the peer can handle a timing request. | |
| bool | sendSnoopResp (TimingResponseProtocol *peer, PacketPtr pkt) |
| Attempt to send a timing snoop response packet to it's peer by calling its corresponding receive function. | |
| void | sendRetryResp (TimingResponseProtocol *peer) |
| Send a retry to the peer that previously attempted a sendTimingResp to this protocol and failed. | |
| Protected Member Functions inherited from gem5::FunctionalRequestProtocol | |
| void | send (FunctionalResponseProtocol *peer, PacketPtr pkt) const |
| Send a functional request packet, where the data is instantly updated everywhere in the memory system, without affecting the current state of any block or moving the block. | |
| void | sendMemBackdoorReq (FunctionalResponseProtocol *peer, const MemBackdoorReq &req, MemBackdoorPtr &backdoor) |
| Send a request for a back door to a range of memory. | |
Protected Attributes | |
| GpuTLB * | tlb |
| int | index |
| Protected Attributes inherited from gem5::RequestPort | |
| SimObject & | owner |
| Protected Attributes inherited from gem5::Port | |
| const PortID | id |
| A numeric identifier to distinguish ports in a vector, and set to InvalidPortID in case this port is not part of a vector. | |
| Port * | _peer |
| A pointer to this port's peer. | |
| bool | _connected |
| Whether this port is currently connected to a peer port. | |
Detailed Description
MemSidePort is the TLB Port closer to the memory side If this is a last level TLB then this port will not be connected.
Future action item: if we ever do real page walks, then this port should be connected to a RubyPort.
Constructor & Destructor Documentation
◆ MemSidePort()
Member Function Documentation
◆ recvAtomic()
◆ recvFunctional()
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inlineprotectedvirtual |
◆ recvRangeChange()
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inlineprotectedvirtual |
Called to receive an address range change from the peer response port.
The default implementation ignores the change and does nothing. Override this function in a derived class if the owner needs to be aware of the address ranges, e.g. in an interconnect component like a bus.
Reimplemented from gem5::RequestPort.
◆ recvReqRetry()
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protectedvirtual |
Called by the peer if sendTimingReq was called on this peer (causing recvTimingReq to be called on the peer) and was unsuccessful.
Implements gem5::TimingRequestProtocol.
Definition at line 1266 of file tlb.cc.
References panic.
◆ recvTimingResp()
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protectedvirtual |
MemSidePort receives the packet back.
We need to call the handleTranslationReturn and propagate up the hierarchy.
Implements gem5::TimingRequestProtocol.
Definition at line 1247 of file tlb.cc.
References gem5::curTick(), DPRINTF, gem5::X86ISA::GpuTLB::TLBEvent::getTLBEventVaddr(), gem5::X86ISA::GpuTLB::MISS_RETURN, gem5::X86ISA::PageBytes, gem5::Packet::req, gem5::roundDown(), gem5::X86ISA::GpuTLB::tlb, and gem5::X86ISA::GpuTLB::TLBEvent::updateOutcome().
Member Data Documentation
◆ index
◆ retries
| std::deque<PacketPtr> gem5::X86ISA::GpuTLB::MemSidePort::retries |
◆ tlb
The documentation for this class was generated from the following files:
Generated on Tue Jun 18 2024 16:24:54 for gem5 by doxygen 1.11.0